These have chains with attachments fastened to or cast integrally with the chain links. These attachments include flat top or crescent top pallets or carriers which presents practically continuous moving surfaces on which objects can be carried directly. Many other attachments like cradles, fixtures, or trays are also available .
Direct Chain Conveyors: These carry load directly on the chain links without any attached auxiliary members. The chains operate on tracks with top surfaces of the chain projecting sufficiently above the tracks to enable various flat objects to be carried on them. These chains are widely used for conveying products like boxes, cases etc